Assembly Step 1

Attach the T-rail to the Opener

For Models 1260, 1260-266, 1255,1255-266, 1250, 1250-266, 1245, 1245-266 and 1240

CAUTION

To fasten rail, use only those screws mounted in top of the opener. Any other screws will cause serious damage to the opener.

See page 9 for Models 1256 and 1246.

•Remove the two washered screws mounted in top of opener

•Align T-rail at an angle with opener so one hole in T-rail and opener line up.

•Thread one of the washered screws part way in.

Use only these screws! Use of any other screws will cause serious damage to door opener.

•Align T-rail and styrofoam over opener sprocket. Cut tape from T-rail, chain and styrofoam.

•REMOVE STYROFOAM.

USE ONLY THIS

TYPE AND SIZE

Washered Screw

SCREW5/16"-18x1/2"

Styrofoam

T-rail

Hole

Chain

Assembly Step 2

Attach Chain to Sprocket and

Install Sprocket Cover

For Models 1260, 1260-266, 1255,1255-266, 1250, 1250-266, 1245, 1245-266 and 1240

•Position chain over the opener sprocket. If necessary, loosen the outer nut on the trolley to obtain more chain slack.

•Insert the second washered screw.

CAUTION: Use only the screw previously removed from opener!

•Tighten both screws securely through the T-rail into the opener as shown.

Install the sprocket cover:

•Insert the back tab in the opener slot. Squeeze the cover slightly and insert the front tab in the slot on the mounting plate.

Sprocket

Cover

WARNING

Serious injury can result if fingers become entangled in moving opener sprocket. Attach sprocket cover securely. Never operate opener while your hand is near the opener sprocket.

USE ONLY THIS

Washered Screw

TYPE AND SIZE

5/16"-18x1/2"

SCREW

Opener

Sprocket

 

Front Tab Slot

Back Tab Slot

Top of Opener

Mounting

Plate

Proceed to Assembly Step 3, page 11.

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